Discretize the tide peak shift using the regulator SWOs water level along the Delaware River and the Schuylkill River by each Tidal Zone.
The SWOs water level time-series between July 22, 2016 and July 28, 2016 were extracted from the Telog server. There was 1.60 in of rainfall on July 25, 2016. The zonal-adjusted time series (hourly) at the coast guard station is overlaid on each plot as dots.
The curves can be smoothed by changing the rollPeriod at the left-bottom corner of each plot, the ZN series would be affected though.